Creating a New Key Pair and Self-signed Certificate 
This example uses the keytool program to create a new key pair and self-signed certificate for the principal Duke. 

 < keytool -genkey -alias alias -keystore .keystore
 Enter keystore password: password
 What is your first and last name?
   [Unknown]: Duke
 What is the name of your organizational unit?
   [Unknown]: JavaSoft
 What is the name of your organization?
   [Unknown]: Sun
 What is the name of your City or Locality?
   [Unknown]: Cupertino
 What is the name of your State or Province?
   [Unknown]: CA
 What is the two-letter country code for this unit?
   [Unknown]: US
 Is  correct?
   [no]: yes